The Annovi Reverberi VR-A 100.300 unloader valve automatically relieves pressure from the pump at shut-off, supporting a maximum pressure of 300 bar (4,351 PSI) and a flow rate of 100 L/min (26.4 GPM). Built for high-power industrial pump systems, it delivers consistent pressure regulation without operator input and is rated to 90°C (194°F). The brass valve body shares its mounting footprint and port layout with the 200 bar VR-A 100.200, so both can be installed on the same panel cutout regardless of pressure rating. This valve features a 1/2" G(F) inlet, a 1/2" G(F) outlet, and a 1/2" G(F) bypass port, and is panel mountable at 1.2 kg (2.6 lb). A locking nut under the handle secures the pressure setting once it's dialed in, preventing drift or tampering. It is suitable for XWL, XWP, RGL, RGP, RTX, and RTD series pumps, giving these high-output lines a matched pressure-relief valve from the pump manufacturer.
| Spring Color | Black |
|---|---|
| Max PSI | 4351 |
| Max GPM | 26.4 |
| Inlet (in) | 1/2' F |
| Outlet (in) | 1/2” F |
| By-pass (in) | 1/2" F |
| Max Temp | 194° F |
| Material | Brass |